Specimen Information

Pacifastacus leniusculus
Pacifastacus leniusculus
(Signal Crayfish)
Crustaceans-Crayfish
Native Transplant

Specimen ID1428749
GroupCrustaceans-Crayfish
GenusPacifastacus
Speciesleniusculus
Common NameSignal Crayfish
StateOR
CountyKlamath
LocalityCrater Lake
Mapping AccuracyAccurate
HUC8 NameWilliamson
HUC8 Number18010201
HUC10 NameCrater Lake-Williamson River
HUC10 Number1801020105
HUC12 NameCrater Lake
HUC12 Number180102010501
Map
+
Collection Year1914
Year AccuracyEstimated
Potential Pathwaystocked for forage
Statusestablished
Reference 1
Ref. Number:31284
Author:Girdner, S.F., A.M. Ray, M.W. Buktenica, D.K. Hering, J.A. Mack, and J.W. Umek
Date:2018
Title:Replacement of a unique population of newts (Taricha granulosa mazamae) by introduced signal crayfish (Pacifastacus leniusculus) in Crater Lake, Oregon
Journal:Biological Invasions
Volume:20
Issue:3
Pages:721-740
Reference 2
Ref. Number:30934
Author:Goldfarb, B.
Date:2015
Title:Invasive crayfish in Oregon devastate native newts
Publisher:High Country News
CommentsAlthough located within the native range, signal crayfish were restricted from entering the waterbody prior to stocking. Stocked in 1914 as forage for rainbow trout and kokanee salmon.
Record TypeLiterature
Earliest Recorddrainage
Freshwater/MarineFreshwater
Number Stocked15,000


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Citation information: U.S. Geological Survey. [2022]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [10/4/2022].

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